FNUS53 KLSX 182320 FWFLSX Fire Weather Planning Forecast for Eastern/Central MO and Southwest IL National Weather Service Saint Louis MO 619 PM CDT Mon May 18 2026 Multiple rounds of showers and thunderstorms have occurred this afternoon with more rainfall expected through the early evening hours. Another round of storms will then move in from the west tonight into Tuesday morning and weaken as they approach Interstate 70. A cold front will then cross the area Tuesday afternoon into evening. A third round of showers and thunderstorms could develop along and ahead of the cold front. Additional chances for rain return late in the week with low certainty regarding the timing of the best chances. MOZ072-073-083-084-099-190900- Crawford MO-Washington MO-Dent MO-Iron MO-Reynolds MO- Including the cities of Potosi/Salem Ranger District and Salem 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Showers Chance Precip (%) 50 70 70 50 Chance of Thunder (%) 50 70 70 0 Temp (24h trend) 66 (-8) 82 (+2) 54 69 RH % (24h trend) 96 (+11) 75 (+4) 100 60 Wind 20ft AM(mph) S 5-9 G23 NE 3-7 G17 Wind 20ft PM(mph) S 7-11 G26 SW 4-8 G20 lgt/var NE 3-7 Precip Amount 0.26 0.38 0.10 0.04 Precip Duration 1 4 9 3 1700ft mixing temp 82 60 Mixing Hgt(ft-agl) 460 2870 660 2930 Transport Wnd (m/s) S 8 SW 9 NW 5 NE 5 Transport Wnd (mph) S 17 SW 20 NW 10 NE 10 Vent Rate (m/s-m) 800 10700 280 6030 Poor Good Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 70s. South winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Southwest winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Southeast winds around 5 mph. $$ MOZ074-075-085-190900- Saint Francois MO-Sainte Genevieve MO-Madison MO- Including the cities of Farmington and Fredericktown Ranger District 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Tstms Chance Precip (%) 50 70 70 50 Chance of Thunder (%) 50 70 70 20 Temp (24h trend) 66 (-8) 83 (+1) 55 69 RH % (24h trend) 100 (+17) 70 (+3) 100 60 Wind 20ft AM(mph) SW 8-12 G24 N 5-9 G17 Wind 20ft PM(mph) S 9-13 G25 SW 6-10 G20 lgt/var N 4-8 G15 Precip Amount 0.23 0.28 0.13 0.03 Precip Duration 1 4 9 2 1700ft mixing temp 85 62 Mixing Hgt(ft-agl) 460 3650 450 2910 Transport Wnd (m/s) S 7 SW 9 W 4 NE 5 Transport Wnd (mph) S 15 SW 21 W 9 NE 12 Vent Rate (m/s-m) 790 11990 280 6030 Poor Good Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Showers and a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 70s. South winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Southwest winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the lower 80s. South winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Southeast winds around 5 mph. $$ MOZ041-047>050-190900- Boone MO-Moniteau MO-Cole MO-Osage MO-Callaway MO- Including the cities of Columbia, Cedar Creek Ranger District, Jefferson City, and Fulton 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Pcldy Precip Type Tstms Tstms Tstms Showers Chance Precip (%) 80 70 30 10 Chance of Thunder (%) 50 50 20 0 Temp (24h trend) 64 (0) 75 (+7) 50 66 RH % (24h trend) 100 (+3) 80 (0) 94 53 Wind 20ft AM(mph) S 6-10 G21 NE 5-9 G18 Wind 20ft PM(mph) S 10-14 G27 NW 6-10 G19 N 4-8 G16 NE 4-8 G16 Precip Amount 1.07 0.27 0.04 0.00 Precip Duration 4 4 2 1 1700ft mixing temp 71 57 Mixing Hgt(ft-agl) 460 2270 440 3340 Transport Wnd (m/s) S 8 W 7 N 6 NE 6 Transport Wnd (mph) S 17 W 16 N 13 NE 13 Vent Rate (m/s-m) 650 7040 650 7470 Poor Fair Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows around 50. Highs in the lower 70s. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the lower 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 50s. Highs around 80. Southwest winds 5 to 10 mph. .SUNDAY...Partly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph. $$ MOZ051-059-060-062-065-190900- Montgomery MO-Gasconade MO-Warren MO-Franklin MO-Jefferson MO- Including the cities of Washington, Union, and Sullivan 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Showers Chance Precip (%) 60 60 60 20 Chance of Thunder (%) 50 50 50 0 Temp (24h trend) 63 (-5) 81 (+6) 50 68 RH % (24h trend) 100 (+9) 76 (+1) 100 57 Wind 20ft AM(mph) S 6-10 G23 N 4-8 G17 Wind 20ft PM(mph) S 8-12 G25 W 5-9 G21 lgt/var NE 3-7 G15 Precip Amount 0.50 0.24 0.10 0.01 Precip Duration 2 4 5 2 1700ft mixing temp 79 58 Mixing Hgt(ft-agl) 450 2730 630 3440 Transport Wnd (m/s) S 7 SW 9 N 6 NE 5 Transport Wnd (mph) S 15 SW 20 N 14 NE 12 Vent Rate (m/s-m) 690 10930 810 6690 Poor Good Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the upper 40s. Highs in the lower 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the mid 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 50s. Highs around 80. West winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the mid 80s. Southeast winds around 5 mph. $$ MOZ061-063-064-190900- Saint Charles MO-Saint Louis MO-Saint Louis City MO- Including the cities of Saint Charles and Saint Louis 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Showers Chance Precip (%) 60 60 60 20 Chance of Thunder (%) 50 50 60 0 Temp (24h trend) 64 (-5) 81 (+3) 53 69 RH % (24h trend) 100 (+16) 71 (0) 97 53 Wind 20ft AM(mph) S 7-11 G21 N 5-9 G15 Wind 20ft PM(mph) S 9-13 G23 W 7-11 G20 NW 4-8 N 4-8 Precip Amount 0.34 0.22 0.14 0.01 Precip Duration 2 4 5 1 1700ft mixing temp 81 59 Mixing Hgt(ft-agl) 460 3180 790 3580 Transport Wnd (m/s) S 6 SW 8 N 7 NE 5 Transport Wnd (mph) S 14 SW 18 N 15 NE 12 Vent Rate (m/s-m) 730 9920 890 6400 Poor Good Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the lower 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the mid 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the upper 50s. Highs in the lower 80s. West winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the mid 80s. South winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the mid 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph. $$ ILZ064-065-069-070-074-079-100>102-190900- Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL- Madison IL-Saint Clair IL-Monroe IL- Including the cities of Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, and Cahokia 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Showers Chance Precip (%) 70 70 70 30 Chance of Thunder (%) 70 70 70 0 Temp (24h trend) 65 (-9) 84 (+6) 56 69 RH % (24h trend) 100 (+19) 66 (-5) 98 56 Wind 20ft AM(mph) S 10-14 G22 N 6-10 G16 Wind 20ft PM(mph) S 9-13 G22 SW 9-13 G21 NW 3-7 N 5-9 Precip Amount 0.28 0.27 0.19 0.01 Precip Duration 2 4 9 2 1700ft mixing temp 83 62 Mixing Hgt(ft-agl) 440 3380 550 3660 Transport Wnd (m/s) S 6 SW 9 W 5 NE 6 Transport Wnd (mph) S 14 SW 21 W 12 NE 13 Vent Rate (m/s-m) 690 13070 400 7270 Poor Good Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the lower 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Southeast winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows around 60. Highs around 80. Southwest winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the lower 80s. South winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the mid 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph. $$ MOZ018-019-026-027-034>036-042-052-190900- Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO- Audrain MO-Lincoln MO- Including the cities of Hannibal, Bowling Green, and Mexico 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Mcldy Mcldy Pcldy Pcldy Precip Type Tstms Tstms Tstms None Chance Precip (%) 90 60 10 0 Chance of Thunder (%) 50 50 10 0 Temp (24h trend) 63 (0) 75 (+7) 48 66 RH % (24h trend) 100 (+2) 70 (-8) 88 51 Wind 20ft AM(mph) SW 8-12 G25 NE 6-10 G18 Wind 20ft PM(mph) S 10-14 G28 NW 7-11 G21 N 5-9 G19 NE 5-9 G16 Precip Amount 0.71 0.20 0.02 0.00 Precip Duration 6 3 2 1700ft mixing temp 68 57 Mixing Hgt(ft-agl) 460 2230 480 4030 Transport Wnd (m/s) S 8 NW 8 N 7 NE 6 Transport Wnd (mph) S 18 NW 17 N 15 NE 13 Vent Rate (m/s-m) 810 8170 620 8700 Poor Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the upper 40s. Highs around 70. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the lower 50s. Highs in the upper 60s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly cloudy. Lows in the lower 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph. $$ ILZ095>098-190900- Adams IL-Brown IL-Pike IL-Calhoun IL- Including the cities of Quincy, Mount Sterling, and Pittsfield 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Mcldy Mcldy Mcldy Pcldy Precip Type Tstms Tstms Showers None Chance Precip (%) 90 60 10 0 Chance of Thunder (%) 50 20 0 0 Temp (24h trend) 64 (0) 76 (+8) 50 67 RH % (24h trend) 100 (+1) 73 (-3) 86 50 Wind 20ft AM(mph) S 8-12 G25 N 6-10 G17 Wind 20ft PM(mph) S 10-14 G26 NW 7-11 G20 NW 5-9 G17 NE 5-9 G15 Precip Amount 0.41 0.23 0.03 0.00 Precip Duration 4 2 1 1700ft mixing temp 72 57 Mixing Hgt(ft-agl) 460 2430 470 4110 Transport Wnd (m/s) S 8 SW 8 N 7 NE 6 Transport Wnd (mph) S 18 SW 18 N 15 NE 13 Vent Rate (m/s-m) 810 9020 620 9050 Poor Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the upper 40s. Highs around 70. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the lower 50s. Highs around 70. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the lower 80s. South winds around 5 mph. .MONDAY...Mostly cloudy. Lows in the lower 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph. $$ ILZ058>060-099-190900- Greene IL-Macoupin IL-Montgomery IL-Jersey IL- Including the city of Litchfield 619 PM CDT Mon May 18 2026 Tonight Tue Tue Night Wed Cloud Cover Pcldy Mcldy Mcldy Pcldy Precip Type Tstms Tstms Tstms None Chance Precip (%) 50 60 40 0 Chance of Thunder (%) 50 50 40 0 Temp (24h trend) 63 (-6) 79 (+5) 51 67 RH % (24h trend) 100 (+12) 71 (-2) 90 53 Wind 20ft AM(mph) S 10-14 G23 N 7-11 G17 Wind 20ft PM(mph) S 11-15 G24 W 9-13 G22 NW 5-9 G15 NE 6-10 Precip Amount 0.28 0.30 0.12 0.00 Precip Duration 1 3 2 1700ft mixing temp 79 59 Mixing Hgt(ft-agl) 480 3170 730 3590 Transport Wnd (m/s) S 8 SW 9 N 7 NE 6 Transport Wnd (mph) S 17 SW 20 N 15 NE 13 Vent Rate (m/s-m) 860 11200 730 7520 Poor Good Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Lows in the mid 40s. Highs around 70. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs in the upper 70s. West winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. South winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the mid 80s. Southeast winds 5 to 10 mph. $$